Thermal stability and hydrophobicity of ZSM-5 series zeolite

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ZSM-5 series zeolite has high thermal stability. This is due to the structurally stable five-membered ring and high silicon/aluminum ratio in the framework. For example, the crystal structure of the sample did not change after being baked at about 850°C for 2 hours. It can even withstand high temperatures of 1100°C. To date, ZSM-5 is one of the most characteristic thermal temperatures of known zeolites. Therefore, it is particularly suitable for high temperature processes. For example, it is used as a hydrocarbon cracking catalyst and can withstand high temperatures when the catalyst is regenerated.

ZSM-5 series zeolite

ZSM-5 series zeolite has high silicon-aluminum ratio and low surface charge density, while water is a highly polar molecule, so it is not easy to be adsorbed by ZSM-5. Although the diameter of water molecule is smaller than that of n-hexane, ZSM-5 series zeolite is not easy to be adsorbed by ZSM-5. The adsorption capacity of n-hexane is generally greater than that of water.

Research on the Synthesis of ZSM-5 series zeolite

Structure of ZSM-5 series zeolite

Research on the Synthesis of ZSM-5 series zeolite

Structure of ZSM-5 series zeolite